Aeronautics and astronautics – Aircraft structure – Fuselage and body construction
Patent
1990-04-20
1991-08-13
Peters, Jr., Joseph F.
Aeronautics and astronautics
Aircraft structure
Fuselage and body construction
2441185, 244121, 128857, 002006, 280728, B64D 1106
Patent
active
050390350
ABSTRACT:
A helmet for aircrew in a highly manueverable aircraft has six air bags which are inflated or deflated by a control system so as to counteract acceleration forces on the wearer's head and helmet. Two pairs of air bags engage the wearer's body, and two bags engage the seat headrest so that restoring forces in yaw, pitch and lateral directions can be applied. A position sensor determines the actual position of the helmet which is compared with the predicted position, as derived from an inertial sensor or inputs from the aircraft flight control system, the difference between these two positions being used to control operation of the air bags. A memory module programmed with information about the behavior of the wearer's head and helmet characterizes the control system to the particular wearer and is removable for use in other systems.
REFERENCES:
patent: 3645259 (1972-02-01), Schalman
patent: 3765412 (1973-10-01), Ommaya et al.
patent: 3840088 (1974-10-01), Marumo et al.
patent: 4243024 (1981-01-01), Crosbie et al.
patent: 4664341 (1987-05-01), Cummings
patent: 4899961 (1990-02-01), Herndon
patent: 4909459 (1988-11-01), Patterson
patent: 4967985 (1990-11-01), Deakin
Ellis Christopher P.
Peters Jr. Joseph F.
Smiths Industries Public Limited Company
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